Table 6.

Mammographic features of the papillary lesions.

Feature	BENIGN	MALIGNANT	ATYPICAL	P value
Mass lesion (%)				<.01∗
present	17 (32.7)	18 (78.3)	2 (100)
absent	35 (67.3)	5 (21.7)	0
Shape (%)				.20
Oval	4 (20)	3 (18.8)	0
Round	4 (20)	0	1 (50)
Irregular	12 (60)	13 (81.2)	1 (50)
Margins (%)				.34
Circumscribed	6 (30)	2 (12.5)	1 (50)
Indistinct	10 (50)	5 (31.2)	1 (50)
Microlobulated	1 (5)	3 (18.8)	0
Spiculated	3 (15)	6 (37.5)	0
Mass density (%)				.13
Low	0	0	0
Equal	8 (44.4)	2 (13.3)	1 (50)
High	10 (55.6)	13 (86.7)	1 (50)
Mass calcification (%)				.15
Benign	6 (30)	3 (18.8)	2 (100)
Suspicious	4 (20)	6 (37.5)	0
Absent	10 (50)	7 (43.7)	0
Asymmetric density (%)				.03∗
present	3 (9.7)	8 (40)	0
absent	28 (90.3)	12 (60)	2 (100)
Architectural distortion (%)				.05
present	1 (3.3)	2 (10.5)	1 (50)
absent	29 (96.7)	17 (89.5)	1 (50)
Density				.38
A	10 (20)	3 (14.3)	1 (50)
B	24 (48)	12 (57.1)	0
C	10 (20)	6 (28.6)	1 (50)
D	6 (12)	0	0